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<hr><h1>login_cookie.cpp</h1><a href="login__cookie_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001
00007 <font class="comment">/* Copyright, 2001 Nevrax Ltd.</font>
00008 <font class="comment"> *</font>
00009 <font class="comment"> * This file is part of NEVRAX NeL Network Services.</font>
00010 <font class="comment"> * NEVRAX NeL Network Services is free software; you can redistribute it and/or modify</font>
00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font>
00013 <font class="comment"> * any later version.</font>
00014 <font class="comment"></font>
00015 <font class="comment"> * NEVRAX NeL Network Services is distributed in the hope that it will be useful, but</font>
00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
00018 <font class="comment"> * General Public License for more details.</font>
00019 <font class="comment"></font>
00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
00021 <font class="comment"> * along with NEVRAX NeL Network Services; see the file COPYING. If not, write to the</font>
00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font>
00023 <font class="comment"> * MA 02111-1307, USA.</font>
00024 <font class="comment"> */</font>
00025
00026 <font class="preprocessor">#include "<a class="code" href="stdnet_8h.html">stdnet.h</a>"</font>
00027
00028 <font class="preprocessor">#include "<a class="code" href="login__cookie_8h.html">nel/net/login_cookie.h</a>"</font>
00029
00030 <font class="keyword">using</font> <font class="keyword">namespace </font>std;
00031 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC;
00032
00033
00034 <font class="keyword">namespace </font>NLNET {
00035
00036
00037 <font class="comment">/*</font>
00038 <font class="comment"> * Comparison == operator</font>
00039 <font class="comment"> */</font>
<a name="l00040"></a><a class="code" href="classNLNET_1_1CLoginCookie.html#a103">00040</a> <font class="keywordtype">bool</font> <a class="code" href="namespaceNLNET.html#a98">operator== </a>(<font class="keyword">const</font> CLoginCookie &c1, <font class="keyword">const</font> CLoginCookie &c2)
00041 {
00042 <a class="code" href="debug_8h.html#a6">nlassert</a> (c1._Valid && c2._Valid);
00043
00044 <font class="keywordflow">return</font> c1._UserAddr==c2._UserAddr && c1._UserKey==c2._UserKey && c1._UserId==c2._UserId;
00045 }
00046
<a name="l00047"></a><a class="code" href="classNLNET_1_1CLoginCookie.html#a0">00047</a> CLoginCookie::CLoginCookie (<a class="code" href="types__nl_8h.html#a10">uint32</a> addr, <a class="code" href="types__nl_8h.html#a10">uint32</a> <a class="code" href="driver__opengl__extension__def_8h.html#a234">id</a>) : _Valid(true), _UserAddr(addr), _UserId(<a class="code" href="driver__opengl__extension__def_8h.html#a234">id</a>)
00048 {
00049 <font class="comment">// generates the key for this cookie</font>
00050 <a class="code" href="classNLNET_1_1CLoginCookie.html#o2">_UserKey</a> = <a class="code" href="classNLNET_1_1CLoginCookie.html#a10">generateKey</a>();
00051 }
00052
00054
<a name="l00055"></a><a class="code" href="classNLNET_1_1CLoginCookie.html#a10">00055</a> <a class="code" href="types__nl_8h.html#a10">uint32</a> CLoginCookie::generateKey()
00056 {
00057 <a class="code" href="types__nl_8h.html#a10">uint32</a> <a class="code" href="driver__opengl__extension__def_8h.html#a261">t</a> = time (NULL);
00058 srand (time(NULL));
00059 <a class="code" href="types__nl_8h.html#a10">uint32</a> <a class="code" href="driver__opengl__extension__def_8h.html#a262">r</a> = rand ();
00060 <font class="keyword">static</font> <a class="code" href="types__nl_8h.html#a10">uint32</a> n = 0;
00061 n++;
00062
00063 <font class="comment">// 12bits for the time (in second) => loop in 1 hour</font>
00064 <font class="comment">// 8bits for random => 256 case</font>
00065 <font class="comment">// 12bits for the inc number => can generate 4096 keys per second without any problem (if you generate more than this number, you could have 2 same keys)</font>
00066 <font class="keywordflow">return</font> (<a class="code" href="driver__opengl__extension__def_8h.html#a261">t</a>&0xFFF)<<20 | (<a class="code" href="driver__opengl__extension__def_8h.html#a262">r</a>&0xFF)<<12 | (n&0xFFF);
00067
00068 <font class="comment">// 12bits for the time (in second) => loop in 1 hour</font>
00069 <font class="comment">// 20bits for the inc number => can generate more than 1 million keys per second without any problem (never exceed on my computer)</font>
00070 <font class="comment">// return (t&0xFFF)<<20 | (n&0xFFFFF);</font>
00071 }
00072
00073
00074 <font class="comment">/* test key generation</font>
00075 <font class="comment">void main()</font>
00076 <font class="comment">{</font>
00077 <font class="comment"> set<uint32> myset;</font>
00078 <font class="comment"></font>
00079 <font class="comment"> // generates the key for this cookie</font>
00080 <font class="comment"> while (true)</font>
00081 <font class="comment"> {</font>
00082 <font class="comment"> uint32 val = (t&0xFFF)<<20 | (r&0xFF)<<12 | (n&0xFFF);</font>
00083 <font class="comment"> pair<set<uint32>::iterator,bool> p = myset.insert (val);</font>
00084 <font class="comment"> if (!p.second) printf("%10u 0x%x already inserted\n", val, val);</font>
00085 <font class="comment"> }</font>
00086 <font class="comment">}</font>
00087 <font class="comment">*/</font>
00088
00089 } <font class="comment">// NL.</font>
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